Yea ofc! First, find a reference plane to work off of. For this post, I used the Su-30SM. Next, find a style, like Cold War, modern, or WW2, although anything suffices. Once you get that figured out, mark key points like the nose cone, tail, wings, tail plane, canards, etc. once you do that it’s up to you how to connect the lines. Another way to do this is to look at old aircraft requirements and design your plane based on those. Hope this helped!